My Speckled Sussex is about 23 weeks old. Yesterday, I noticed she was limping and pretty much non weight bearing on her foot. Today I went out to find it turning green! I brought her inside and soaked it in some warm water with epsom salt, but other than that, I don't know what I should do. She is acting fine otherwise, eating and perky, but is very painful on that foot. Any ideas what is going on and what I can do?